import Vue from 'vue'
import Router from 'vue-router'

const _import = require('./_import_' + process.env.NODE_ENV)
// in development-env not use lazy-loading, because lazy-loading too many pages will cause webpack hot update too slow. so only in production use lazy-loading;
// detail: https://panjiachen.github.io/vue-element-admin-site/#/lazy-loading

Vue.use(Router)

/* Layout */
import Layout from '../layout/Layout'

/**
 * hidden: true                   if `hidden:true` will not show in the sidebar(default is false)
 * redirect: noredirect           if `redirect:noredirect` will no redirct in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    title: 'title'               the name show in submenu and breadcrumb (recommend set)
    icon: 'svg-name'             the icon show in the sidebar,
  }
 **/
export const constantRouterMap = [
  {path: '/404', component: _import('404/404'), hidden: true},
  {
    path: '',
    component: Layout,
    redirect: 'dashboard',
    children: [
      {
        path: 'dashboard',
        component: _import('dashboard/index'),
        meta: {title: 'dashboard', icon: 'dashboard'},
        name: 'dashboard'
      }
    ]
  },
  {
    path: '/documentation',
    component: Layout,
    redirect: '/documentation',
    children: [
      {
        path: 'index',
        component: _import('documentation/index'),
        name: 'documentation',
        meta: {title: 'documentation', icon: 'documentation', noCache: true}
      }
    ]
  },
  {
    path: '/charts',
    component: Layout,
    meta: {title: 'charts', icon: 'chart'},
    name: 'charts',
    redirect: '/charts/keyboard',
    children: [
      {
        path: 'keyboard',
        component: _import('charts/keyboard'),
        name: 'keyboard',
        meta: {title: 'keyboard'}
      },
      {
        path: 'line',
        component: _import('charts/line'),
        name: 'line',
        meta: {title: 'line'}
      }
    ]
  },

  {path: '*', redirect: '/404', hidden: true}
]

export default new Router({
  // mode: 'history', //后端支持可开
  scrollBehavior: () => ({y: 0}),
  routes: constantRouterMap
})

